One technique they're experimenting with is so-called "dew-point cooling," which relies on the natural energy produced by evaporating water, rather than fossil fuels.

其中有一项已经试验的技术叫做“露点制冷”，这项技术依赖自然能源自造蒸馏水。 而不是利用化石燃料来制造。

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With the use of frozen water units, modular units and natural cooling system for HIMOD flagship series will have the obvious effect for the energy saving.

HIMOD系列旗舰型的冷冻水机组HIMOD系列旗舰型模块化机组与自然冷却系统配合使用，会有显著的节能效果。

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A hydraulic computation equation for water distribution sytem of counterflow type natural draft cooling tower has been established by applying Bernoulli Equation.

运用伯努利方程建立了逆流式自然通风冷却塔（逆流塔）配水的水力计算方程。

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The new Generation III reactors such as the AP1000 have a simplified "passive" cooling system where the water circulates by natural convection with no pumping required.

WSJ: William Tucker: Japan Does Not Face Another Chernobyl

It uses so-called passive systems for cooling, such as the gravity flow of water and natural circulation based on thermodynamics.

WSJ: NRC Approves Toshiba Reactor Design